The present invention provides an assembly for assisting in the construction of a pier. The assembly includes a base, an extension pole, and a collar. The base is adapted to rest on the lake floor. The extension pole is connected to the base and is of a sufficient length to extend above the water surface. The collar is mounted to the extension pole and supports a portion of the pier while an additional pier section is secured to support beams. The assembly is capable of being maneuvered without assistance, because the assembly provides structural support during construction of a pier, without requiring a user to actively support parts of the pier while in the water.